Static information storage and retrieval – Read/write circuit – Differential sensing
Reexamination Certificate
2006-08-29
2006-08-29
Elms, Richard (Department: 2824)
Static information storage and retrieval
Read/write circuit
Differential sensing
C365S208000, C365S230080
Reexamination Certificate
active
07099218
ABSTRACT:
A differential current evaluation circuit has a differential amplifier and a circuit for setting an input resistance of the current evaluation circuit. The circuit is connected to the outputs and the inputs of the differential amplifier and to signal lines. A sense amplifier circuit has a circuit section, in which a signal is available at an output in a temporally continuous manner even if, after the deactivation of the circuit connected upstream, a signal, in particular a signal supplied by the current evaluation circuit, is no longer present at its input. The differential current evaluation circuit and the sense amplifier circuit are disposed in a circuit configuration for reading out and evaluating a memory state of a semiconductor memory cell. The current evaluation circuit can be activated by a circuit section for automatic deactivation before a read operation and be automatically deactivated directly after the read operation has ended.
REFERENCES:
patent: 4697112 (1987-09-01), Ohtani et al.
patent: 5015891 (1991-05-01), Choi
patent: 5162681 (1992-11-01), Lee
patent: 5253137 (1993-10-01), Seevinck
patent: 5710736 (1998-01-01), Masuda et al.
patent: 5828614 (1998-10-01), Gradinariu
patent: 5872465 (1999-02-01), Saitoh
patent: 5883846 (1999-03-01), Lee
patent: 6044036 (2000-03-01), Flannagan et al.
patent: 6215713 (2001-04-01), Austin
patent: 6282138 (2001-08-01), Wilkins
patent: 6317374 (2001-11-01), Feurle
patent: 6466500 (2002-10-01), Wicht et al.
patent: 2001/0043119 (2001-11-01), Wicht et al.
patent: 2003/0063496 (2003-04-01), Baglin et al.
patent: 2005/0117424 (2005-06-01), Sung
patent: 41 05 268 (1992-06-01), None
patent: 199 61 518 (2001-07-01), None
patent: 100 22 263 (2001-11-01), None
patent: 100 23 362 (2001-11-01), None
patent: 0 748 042 (1996-12-01), None
patent: 0 827 151 (1998-03-01), None
patent: 03-016092 (1991-01-01), None
patent: 04-032096 (1992-02-01), None
patent: 09-223957 (1997-08-01), None
patent: 10-031893 (1998-02-01), None
patent: 10-289586 (1998-10-01), None
H. Klar: “Integrierte Digitale Schaltungen MOS/BICOMS” [integrated digital circuits MOS/BICMOS],Springer Verlag Berlin, 2nd, Ed. 1996, pp. 178-183.
Nobutaro Shibata: “Current Sense Amplifiers for Low-Voltage Memories”,IEICE Trans. Electron., vol. E79-C, No. 8, Aug. 1996, pp. 1120-1130.
Borivoje Nikolic et al.: “Improved Sense-Amplifier-Based Flip-Flop: Design and Measurements”,IEEE Journal of Solid-State Circuits, vol. 35, No. 6, Jun. 2000, pp. 876-884.
Larguier Jean-Yves
Schmitt-Landsiedel Doris
Wicht Bernhard
Elms Richard
Greenberg Laurence A.
Locher Ralph E.
Stemer Werner H.
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